"Success, like self-worth, is something that must be determined by each individual according to the standards, beliefs, and values that they use to guide their life." meaning

True, theres is a crashcourse philospohy video on this. This is called the Nihilistic view.

i think the answer is c. she can't feel happy because things are moving too quickly.

the apollo program, also known as project apollo, was the third united states human spaceflight program carried out by the national aeronautics and space administration (nasa), which succeeded in landing the first humans on the moon from 1969 to 1972.